Those who write in democratic ages have another more dangerous tendency. When the traces of individual action upon nations are lost, it often happens that the world goes on to move, though the moving agent is no longer discoverable. As it becomes extremely difficult to discern and to analyze the reasons which, acting separately on the volition of each member of the community, concur in the end to produce movement in the old mass, men are led to believe that this movement is involuntary, and that societies unconsciously obey some superior force ruling over them. But even when the general fact which governs the private volition of all individuals is supposed to be discovered upon the earth, the principle of human free-will is not secure. A cause sufficiently extensive to affect millions of men at once, and sufficiently strong to bend them all together in the same direction, may well seem irresistible: having seen that mankind do yield to it, the mind is close upon the inference that mankind cannot resist it. Historians who live in democratic ages, then, not only deny that the few have any power of acting upon the destiny of a people, but they deprive the people themselves of the power of modifying their own condition, and they subject them either to an inflexible Providence, or to some blind necessity. According to them, each nation is indissolubly bound by its position, its origin, its precedents, and its character, to a certain lot which no efforts can ever change. They involve generation in generation, and thus, going back from age to age, and from necessity to necessity, up to the origin of the world, they forge a close and enormous chain, which girds and binds the human race. To their minds it is not enough to show what events have occurred: they would fain show that events could not have occurred otherwise. They take a nation arrived at a certain stage of its history, and they affirm that it could not but follow the track which brought it thither. It is easier to make such an assertion than to show by what means the nation might have adopted a better course.